Title :
Short-pulse-probe SAW profilometry of integrated acousto-optic filters
Author :
Rashid, H. ; Smith, D.A. ; Pathan, M.A. ; Bao, Z.
Author_Institution :
Dept. of Electr. Eng. & Appl. Phys., Case Western Reserve Univ., Cleveland, OH, USA
fDate :
30 Oct-2 Nov 1995
Abstract :
In this paper, we systematically compare the two methods of profilometry for two generations of integrated acousto-optical tunable filters (AOTFs), one with uniform AOTF-the classical geometry, and the sinusoidally-weighted SAW-coupler-based AOTF which is the archetypal sidelobe-suppressed AOTF design. This work is the first comparison of these profilometry techniques, and further represents the first use of the simple technique of short pulse profilometry to examine the complex SAW waveguide geometries needed for passband control. Devices operating in the 1550 nm optical communication band have been evaluated
Keywords :
acousto-optical filters; band-pass filters; integrated optics; optical communication equipment; surface acoustic wave filters; surface acoustic wave waveguides; surface topography measurement; 1550 nm; archetypal sidelobe-suppressed AOTF design; classical geometry; complex SAW waveguide geometries; integrated acousto optical tunable filters; integrated acousto-optic filters; nm optical communication band; passband control; profilometry; profilometry techniques; short pulse profilometry; short-pulse-probe SAW profilometry; sinusoidally-weighted SAW-coupler-based AOTF; uniform AOTF; Acoustic pulses; Laser beams; Optical diffraction; Optical filters; Optical pulses; Optical waveguides; Passband; Probes; Radio frequency; Surface acoustic waves;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2450-1
DOI :
10.1109/LEOS.1995.484680
